1000103 has 8 divisors (see below), whose sum is σ = 1134000. Its totient is φ = 874368.

The previous prime is 1000099. The next prime is 1000117. The reversal of 1000103 is 3010001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000103 - 2² = 1000099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1778 + ... + 2271.

It is an arithmetic number, because the mean of its divisors is an integer number (141750).

2^1000103 is an apocalyptic number.

1000103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1000103 is a deficient number, since it is larger than the sum of its proper divisors (133897).

1000103 is a wasteful number, since it uses less digits than its factorization.

1000103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4081.

The product of its (nonzero) digits is 3, while the sum is 5.

The square root of 1000103 is about 1000.0514986739. The cubic root of 1000103 is about 100.0034332155.

Adding to 1000103 its reverse (3010001), we get a palindrome (4010104).

The spelling of 1000103 in words is "one million, one hundred three", and thus it is an aban number.